Bobbin



Feb. 22, 193s. G, 'B MAKLE, JR 2,109,430

BOBBIN Filed Feb. 5, 1936 Patented F eb. 22, 1938 UNITED STATES PATENT OFFICE BoBBrN George B. Markle, Jr., Freeland Spool and Pa., assgnor to I Corp., Hazleton,

Hazleton,

Bobbin 7 claims.

This invention relates to certain new and useful improvements in bobbins and more particularly to a construction of bobbin having a bushing for increasing the wear, the object being to provide a bobbin which is so constructed that the bushings will be firmly locked in position by the heads so as to prevent the same from being removed or being accidently displaced or from turning or moving in any way.

Another object of my vinvention is to provide -a bobbin which is exceedingly simple and cheap in construction and one life, the same being preferably constructed of a Wooden body having fiber heads.

Other and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof dened by the appended claims.

In the drawing,

Figure 1 is a perspective view of a bobbin constructed in accordance with my invention;

Figure 2 is a longitudinal section through the same, partly broken away;

Figure 3 is a perspective view of the bushing P detached;

Figure 4 is a detail section of one end of a bobbin showing a modified form of bushing;

Figure 5 is a perspective View of the construction of bushing disclosed in Figure 4;

Figure 6 is a detail sectional View of still another modiiied form; and

Figure 7 is a perspective view of the bushing disclosed in Figure 6.

In the embodiment of my invention as shown r in Figures 1, 2, and 3, I employ a cylindrical'body l preferably formed of wood which is provided with a longitudinal bore 2 extending therethrough annularly enlarged at each end to form a recess 3 to provide a seat for a cylindrical bushing 4. The bushing 4 is preferably formed of ber, but can be formed of any suitable material and therefore I do not wish to limit myself to the use of any particular material for forming the body l or the bushing 4 as these may be .y formed of any suitable metal, if desired.

I also do not wish to limit myself to the size of the bushing employed as the same can be formed of various lengths.

Arranged over each end of the body is a cylindrical head 5 having a central bore 6 which is surrounded by an annular boss l, the head being cut away to form an annular groove 8 into which the end of the body extends and is secured by obliquely arranged screws 9.

This provides a simple construction of bobbin Which will have a longv in which the bushing 4 at each end is secured in position by the head as the boss 'l forces the bushing firmly into position Within its seat and holds the same against rotation or movement in any way, the bushing being constructed tosnugly 5 .fit the annular recess 3 and When the heads are in position, a bobbin is constructed which is pro-V vided with a bushing at each end.

The heads 5 are preferably formed of ber, but can be formed of any suitable material. y

In the modification shown in Figures 4 and 5, I show a bobbin constructed in substantially the same manner as disclosed in Figures 1, 2, and 3, comprising a cylindrical body 9 and a cylindrical head l which is provided With a recess Il of a greater depth than that shown inthe preferred embodiment of my invention and in Which a bushing I2 is seated having a'roughened periphery formed by fluting the periphery of the same as shown at i3 whereby the peaks of the flutes f will imbed themselves in the wall of the recess l! so as to prevent thebushing from rotating in the case of any shrinkage.

In the modification shown in Figures 6 and 7, the bobbin is formed of a cylindrical body I4 25 having a head l5, the body being provided With a recess' I6 to form a seat for a bushing l1, the ends of which are uted as shown at I8 and the peaks of the flutes are adapted to imbed themselves in the bottom of the recess I6 and in the 30 lower end of the boss formed on the head in order to prevent the same from rotating.

In all of the embodiments of my invention as herein shown, I form a bobbin of a cylindrical body with a seat at each end to receive a bushing and into which extends a boss correspondingin shape to the seat so that the bosses will engage the outer ends of the bushings in order to firmly hold the bushings within their seats and by havstrong and durable bobbin is formed.

While in the drawing I have shown the periphery and ends of the bushings fluted, I Wish it to be` clearly understood that I donot Wish to limit myself to the `particular manner of knurling or roughening these surfaces as I am aware'that the same can be roughened by other Ways; however, I have found that by forming flutes the same can be forced readily in position within their seats and will be rmly held thereon.

What I claim is:

1. A bobbin comprising a cylindrical body of the same diameter throughout its length havingr a longitudinal bore extending therethrough enlarged at each end to form-an annular recess to provide a seat, a bushing fitting snugly in each recess, a head arranged against each end of said body engaging the outer face of the adjacent bushing for securing said bushing Within its seat, and fastening members extending through said heads into the ends of said body for securing said heads to said body and said bushings within said seats.

2. A bobbin of the kind described comp-rising a cylindrical body having a longitudinally disposed bore enlarged at each end to form a recess to provide a seat, a bushing arranged in each recess, a head for each end of said body having an annular recess to receive the ends of said body, said latter recess forming a central projection extending into the first mentioned recess and engaging the outer face of said bushing, and obliquely arranged screws extending, through said head into said body for fastening said heads to the ends of said body and the bushings Within said recesses.

3. A bobbin of the kind described comprising a cylindrical body having a longitudinal bore extending therethrough enlarged at each end to form a recess to provide a seat, a fluted bushing arranged within each seat having its outer Wall embedded Within the Wall of the recess, apertured heads provided with annular recesses to receive the ends of said body, said heads being provided With central projections extending into said recessesY and engaging the outer faces of said bushings, and obliquely arranged screws extending through said heads into said body for locking said vheads on the ends of said body and said bushings within said recesses.

4. A bobbin comprising a cylindrical body of the same diameter throughout its length having a longitudinal bore extending therethrough enlarged at one end to form an annular recess to provide a seat, a bushing fitting snugly in said recess, a head arranged against each end of said body, one of the heads engaging the outer face of said bushing for securing said bushing Within its seat, and fastening members extending through said heads into the ends of said body for securing said heads to said body and said bushing Within said seat.

5. A bobbin comprising a cylindrical body having a longitudinal bore extending therethrough enlarged at one end to form an annular recess to provide a seat, a fiuted bushing fitting snugly in said recess, a head arranged against each end of said body, one of said heads engaging the outer face of said bushing for securing said bushing Within its seat, and fastening members extending through said heads into the ends of said body-for securing said heads to said body and said bushing within said seat.

6. A bobbin comprising a cylindrical body having a longitudinal bore extending therethrough enlarged at one end to form an annular recess to prov-ide a seat, a bushing fitting snugly in said recess, a head arranged against each end of said body, one of said heads being provided with a projection extending into said recess and engaging the outer face of said bushing for securing said bushing within its seat and fastening members extending through said heads into the ends of said body for securing said heads to said body and said bushing Within said seat.

'7. A bobbin comprising a cylindrical body having a longitudinal bore extending therethrough enlarged at one end to form an annular recess to provide a seat, a bushing fitting snugly in said recess, a head arranged against each end of said body, one of the heads for said body having an annular recess to receive the end of said body and a central boss extending into the adjacent recess and engaging the outer face of said bushing to hold said bushing in position within said recess and fastening members extending through said heads into the ends of said body for securing said heads to said body and said bushing Within said seat.

GEORGE B. MARKLE, JR. 

